<!DOCTYPE html>
<html lang="en" xmlns:th="https://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>系统首页</title>
</head>
<body>
<h1 style="background-color: pink">系统首页</h1>
<div style="width: 100px;height: 100px;background-color: coral">重点!!</div>
退出是一个post请求<br>
<form method="post" th:action="@{/logout}">
    <input type="submit" value="退出">
</form>
</body>
</html>